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                    函数的扩展
            
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                    变量作用域与解构赋值
            
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                    高阶函数
            
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                    array其他方法
            
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                    闭包
            
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                    箭头函数
            
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                    Promise
            
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                    generator
            
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                    Math
            
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                    Proxy
            
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                    正则表达式
            
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                    正则表达式别篇
            
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                    JSON
            
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                    面向对象编程
            
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                    对象的扩展
            
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                    创建对象
            
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                    原型继承
            
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                    class继承
            
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        <li class="chapter " data-level="1.2.10.5" data-path="../基础/模块化Module.html">
            
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                    模块化Module
            
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                    异常处理
            
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        <li class="chapter " data-level="1.2.12" data-path="../基础/编程风格.html">
            
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                    编程风格
            
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                    js 扩展
            
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                    字符串
            
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                    浏览器
            
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                    浏览器对象
            
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                    操作DOM
            
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                    更新DOM
            
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                    插入DOM
            
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                    删除DOM
            
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                    DOM事件
            
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                    操作表单
            
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                    操作文件
            
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                    AJAX
            
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                    Canvas
            
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                    Jquery
            
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                    选择器
            
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                    层级选择器
            
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                    查找和过滤
            
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                    操作DOM
            
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                    修改DOM结构
            
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                    事件
            
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                    动画
            
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                    AJAX
            
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                    扩展
            
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                    Nodejs
            
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                    模块
            
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        <li class="chapter " data-level="1.6.2" data-path="../nodejs/path.html">
            
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                    path
            
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        <li class="chapter " data-level="1.6.3" data-path="../nodejs/文件操作.html">
            
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                    文件操作 fs
            
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        <li class="chapter " data-level="1.6.4" data-path="../nodejs/流Stream.html">
            
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                    流Stream
            
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        <li class="chapter " data-level="1.6.5" data-path="../nodejs/zlib压缩解压缩.html">
            
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                    zlib压缩解压缩
            
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                    net网络
            
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                    http
            
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        <li class="chapter " data-level="1.6.8" data-path="../nodejs/express框架.html">
            
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                    express框架
            
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                    process 进程
            
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                    child_process
            
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                    os-操作系统
            
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                    React
            
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<li>&#x66F4;&#x65B0;&#xFF1A;&#x66F4;&#x65B0;&#x8BE5;DOM&#x8282;&#x70B9;&#x7684;&#x5185;&#x5BB9;&#xFF0C;&#x76F8;&#x5F53;&#x4E8E;&#x66F4;&#x65B0;&#x4E86;&#x8BE5;DOM&#x8282;&#x70B9;&#x8868;&#x793A;&#x7684;HTML&#x7684;&#x5185;&#x5BB9;&#xFF1B;</li>
<li>&#x904D;&#x5386;&#xFF1A;&#x904D;&#x5386;&#x8BE5;DOM&#x8282;&#x70B9;&#x4E0B;&#x7684;&#x5B50;&#x8282;&#x70B9;&#xFF0C;&#x4EE5;&#x4FBF;&#x8FDB;&#x884C;&#x8FDB;&#x4E00;&#x6B65;&#x64CD;&#x4F5C;&#xFF1B;</li>
<li>&#x6DFB;&#x52A0;&#xFF1A;&#x5728;&#x8BE5;DOM&#x8282;&#x70B9;&#x4E0B;&#x65B0;&#x589E;&#x4E00;&#x4E2A;&#x5B50;&#x8282;&#x70B9;&#xFF0C;&#x76F8;&#x5F53;&#x4E8E;&#x52A8;&#x6001;&#x589E;&#x52A0;&#x4E86;&#x4E00;&#x4E2A;HTML&#x8282;&#x70B9;&#xFF1B;</li>
<li>&#x5220;&#x9664;&#xFF1A;&#x5C06;&#x8BE5;&#x8282;&#x70B9;&#x4ECE;HTML&#x4E2D;&#x5220;&#x9664;&#xFF0C;&#x76F8;&#x5F53;&#x4E8E;&#x5220;&#x6389;&#x4E86;&#x8BE5;DOM&#x8282;&#x70B9;&#x7684;&#x5185;&#x5BB9;&#x4EE5;&#x53CA;&#x5B83;&#x5305;&#x542B;&#x7684;&#x6240;&#x6709;&#x5B50;&#x8282;&#x70B9;&#x3002;</li>
</ul>
<p>&#x5728;&#x64CD;&#x4F5C;&#x4E00;&#x4E2A;DOM&#x8282;&#x70B9;&#x524D;&#xFF0C;&#x6211;&#x4EEC;&#x9700;&#x8981;&#x901A;&#x8FC7;&#x5404;&#x79CD;&#x65B9;&#x5F0F;&#x5148;&#x62FF;&#x5230;&#x8FD9;&#x4E2A;DOM&#x8282;&#x70B9;&#x3002;&#x6700;&#x5E38;&#x7528;&#x7684;&#x65B9;&#x6CD5;&#x662F;<code>document.getElementById()</code>&#x548C;<code>document.getElementsByTagName()</code>&#xFF0C;&#x4EE5;&#x53CA;CSS&#x9009;&#x62E9;&#x5668;<code>document.getElementsByClassName()</code>&#x3002;</p>
<p>&#x7531;&#x4E8E;ID&#x5728;HTML&#x6587;&#x6863;&#x4E2D;&#x662F;&#x552F;&#x4E00;&#x7684;&#xFF0C;&#x6240;&#x4EE5;<code>document.getElementById()</code>&#x53EF;&#x4EE5;&#x76F4;&#x63A5;&#x5B9A;&#x4F4D;&#x552F;&#x4E00;&#x7684;&#x4E00;&#x4E2A;DOM&#x8282;&#x70B9;&#x3002;<code>document.getElementsByTagName()</code>&#x548C;<code>document.getElementsByClassName()</code>&#x603B;&#x662F;&#x8FD4;&#x56DE;&#x4E00;&#x7EC4;DOM&#x8282;&#x70B9;&#x3002;&#x8981;&#x7CBE;&#x786E;&#x5730;&#x9009;&#x62E9;DOM&#xFF0C;&#x53EF;&#x4EE5;&#x5148;&#x5B9A;&#x4F4D;&#x7236;&#x8282;&#x70B9;&#xFF0C;&#x518D;&#x4ECE;&#x7236;&#x8282;&#x70B9;&#x5F00;&#x59CB;&#x9009;&#x62E9;&#xFF0C;&#x4EE5;&#x7F29;&#x5C0F;&#x8303;&#x56F4;&#x3002;</p>
<pre><code class="lang-javascript"><span class="hljs-comment">// &#x8FD4;&#x56DE;ID&#x4E3A;&apos;test&apos;&#x7684;&#x8282;&#x70B9;&#xFF1A;</span>
<span class="hljs-keyword">var</span> test = <span class="hljs-built_in">document</span>.getElementById(<span class="hljs-string">&apos;test&apos;</span>);

<span class="hljs-comment">// &#x5148;&#x5B9A;&#x4F4D;ID&#x4E3A;&apos;test-table&apos;&#x7684;&#x8282;&#x70B9;&#xFF0C;&#x518D;&#x8FD4;&#x56DE;&#x5176;&#x5185;&#x90E8;&#x6240;&#x6709;tr&#x8282;&#x70B9;&#xFF1A;</span>
<span class="hljs-keyword">var</span> trs = <span class="hljs-built_in">document</span>.getElementById(<span class="hljs-string">&apos;test-table&apos;</span>).getElementsByTagName(<span class="hljs-string">&apos;tr&apos;</span>);

<span class="hljs-comment">// &#x5148;&#x5B9A;&#x4F4D;ID&#x4E3A;&apos;test-div&apos;&#x7684;&#x8282;&#x70B9;&#xFF0C;&#x518D;&#x8FD4;&#x56DE;&#x5176;&#x5185;&#x90E8;&#x6240;&#x6709;class&#x5305;&#x542B;red&#x7684;&#x8282;&#x70B9;&#xFF1A;</span>
<span class="hljs-keyword">var</span> reds = <span class="hljs-built_in">document</span>.getElementById(<span class="hljs-string">&apos;test-div&apos;</span>).getElementsByClassName(<span class="hljs-string">&apos;red&apos;</span>);

<span class="hljs-comment">// &#x83B7;&#x53D6;&#x8282;&#x70B9;test&#x4E0B;&#x7684;&#x6240;&#x6709;&#x76F4;&#x5C5E;&#x5B50;&#x8282;&#x70B9;:</span>
<span class="hljs-keyword">var</span> cs = test.children;

<span class="hljs-comment">// &#x83B7;&#x53D6;&#x8282;&#x70B9;test&#x4E0B;&#x7B2C;&#x4E00;&#x4E2A;&#x3001;&#x6700;&#x540E;&#x4E00;&#x4E2A;&#x5B50;&#x8282;&#x70B9;&#xFF1A;</span>
<span class="hljs-keyword">var</span> first = test.firstElementChild;
<span class="hljs-keyword">var</span> last = test.lastElementChild;
</code></pre>
<p>&#x7B2C;&#x4E8C;&#x79CD;&#x65B9;&#x6CD5;&#x662F;&#x4F7F;&#x7528;<code>querySelector()</code>&#x548C;<code>querySelectorAll()</code>&#xFF0C;&#x9700;&#x8981;&#x4E86;&#x89E3;selector&#x8BED;&#x6CD5;&#xFF0C;&#x7136;&#x540E;&#x4F7F;&#x7528;&#x6761;&#x4EF6;&#x6765;&#x83B7;&#x53D6;&#x8282;&#x70B9;&#xFF0C;&#x66F4;&#x52A0;&#x65B9;&#x4FBF;&#xFF1A;</p>
<pre><code class="lang-javascript"><span class="hljs-comment">// &#x901A;&#x8FC7;querySelector&#x83B7;&#x53D6;ID&#x4E3A;q1&#x7684;&#x8282;&#x70B9;&#xFF1A;</span>
<span class="hljs-keyword">var</span> q1 = <span class="hljs-built_in">document</span>.querySelector(<span class="hljs-string">&apos;#q1&apos;</span>);

<span class="hljs-comment">// &#x901A;&#x8FC7;querySelectorAll&#x83B7;&#x53D6;q1&#x8282;&#x70B9;&#x5185;&#x7684;&#x7B26;&#x5408;&#x6761;&#x4EF6;&#x7684;&#x6240;&#x6709;&#x8282;&#x70B9;&#xFF1A;</span>
<span class="hljs-keyword">var</span> ps = q1.querySelectorAll(<span class="hljs-string">&apos;div.highlighted &gt; p&apos;</span>);
</code></pre>
<p>&#x6CE8;&#x610F;&#xFF1A;&#x4F4E;&#x7248;&#x672C;&#x7684;IE&lt;8&#x4E0D;&#x652F;&#x6301;<code>querySelector</code>&#x548C;<code>querySelectorAll</code>&#x3002;IE8&#x4EC5;&#x6709;&#x9650;&#x652F;&#x6301;&#x3002;</p>
<p>&#x4E25;&#x683C;&#x5730;&#x8BB2;&#xFF0C;&#x6211;&#x4EEC;&#x8FD9;&#x91CC;&#x7684;DOM&#x8282;&#x70B9;&#x662F;&#x6307;<code>Element</code>&#xFF0C;&#x4F46;&#x662F;DOM&#x8282;&#x70B9;&#x5B9E;&#x9645;&#x4E0A;&#x662F;<code>Node</code>&#xFF0C;&#x5728;HTML&#x4E2D;&#xFF0C;<code>Node</code>&#x5305;&#x62EC;<code>Element</code>&#x3001;<code>Comment</code>&#x3001;<code>CDATA_SECTION</code>&#x7B49;&#x5F88;&#x591A;&#x79CD;&#xFF0C;&#x4EE5;&#x53CA;&#x6839;&#x8282;&#x70B9;<code>Document</code>&#x7C7B;&#x578B;&#xFF0C;&#x4F46;&#x662F;&#xFF0C;&#x7EDD;&#x5927;&#x591A;&#x6570;&#x65F6;&#x5019;&#x6211;&#x4EEC;&#x53EA;&#x5173;&#x5FC3;<code>Element</code>&#xFF0C;&#x4E5F;&#x5C31;&#x662F;&#x5B9E;&#x9645;&#x63A7;&#x5236;&#x9875;&#x9762;&#x7ED3;&#x6784;&#x7684;<code>Node</code>&#xFF0C;&#x5176;&#x4ED6;&#x7C7B;&#x578B;&#x7684;<code>Node</code>&#x5FFD;&#x7565;&#x5373;&#x53EF;&#x3002;&#x6839;&#x8282;&#x70B9;<code>Document</code>&#x5DF2;&#x7ECF;&#x81EA;&#x52A8;&#x7ED1;&#x5B9A;&#x4E3A;&#x5168;&#x5C40;&#x53D8;&#x91CF;<code>document</code>&#x3002;</p>

                                
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